Question 9
FThe Figure shows what happens to alpha, beta and gamma radiation from a source outside the body.
Figure
a.[1]
Use the Figure to give the radiation that cannot pass through the skin.
b.[2]
Explain why an alpha source outside the body is the least dangerous of the three.
c.[3]
Explain why an alpha source is the most dangerous of the three if it is breathed in or swallowed.
d.[2]
People who handle radioactive powders wear gloves and face masks.
Explain why.
6.5 Uses and dangers of radioactivity Questions
97 exam-style questions on Edexcel GCSE Physics 6.5 Uses and dangers of radioactivity, covering 6.5.1 Uses of radioactivity, 6.5.2 Dangers of ionising radiation and precautions, 6.5.3 Half-life and radiation dangers, 6.5.4 Safety precautions for radiation exposure, and 6.5.5 Contamination and irradiation. Each one has a worked solution and a mark scheme showing where the marks go.